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Has anyone actually implemented a Fibonacci-Heap efficiently?
Has anyone of you ever implemented a Fibonacci-Heap ? I did so a few years back, but it was several orders of magnitude slower than using array-based BinHeaps.
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When do I need to use a semicolon vs a slash in Oracle SQL?
We have been having some debate this week at my company as to how we should write our SQL scripts.
6 Answers
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What does LayoutInflater in Android do?
... you place android widgets and then in the adapter's code you have to do something like this:
public MyAdapter(Context context, List<MyObject> objects) extends ArrayAdapter {
super(context, 1, objects);
/* We get the inflator in the constructor */
mInflater = (LayoutInflater) context.ge...
Add days to JavaScript Date
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console.log(date.addDays(5));
This takes care of automatically incrementing the month if necessary. For example:
8/31 + 1 day will become 9/1.
The problem with using setDate directly is that it's a mutator and that sort of thing is best avoided. ECMA saw fit to treat Date as a mutable class r...
Setting variable to NULL after free
In my company there is a coding rule that says, after freeing any memory, reset the variable to NULL . For example ...
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Why use static_cast(x) instead of (int)x?
...language, or an appropriate constructor that makes it possible. The only time it's a bit risky is when you cast down to an inherited class; you must make sure that the object is actually the descendant that you claim it is, by means external to the language (like a flag in the object). A dynamic_cas...
Hibernate openSession() vs getCurrentSession()
I have some questions about using Hibernate in JSP web application.
5 Answers
5
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What is a proper naming convention for MySQL FKs?
Being that they must be unique, what should I name FK's in a MySQL DB?
4 Answers
4
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Bulk insert with SQLAlchemy ORM
... updates!
For instance, you can do:
s = Session()
objects = [
User(name="u1"),
User(name="u2"),
User(name="u3")
]
s.bulk_save_objects(objects)
s.commit()
Here, a bulk insert will be made.
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In Markdown, what is the best way to link to a fragment of a page, i.e. #some_id?
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See this answer.
In summary make a destination with
<a name="sometext"></a>
inserted anywhere in your markdown markup (for example in a header:
## heading<a name="headin"></a>
and link to it using the markdown linkage:
[This is the link text](#headin)
o...